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/* -*- c -*- */
/*
* input.h
*
* chpp
*
* Copyright (C) 1997-1998 Mark Probst
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __INPUT_H__
#define __INPUT_H__
#include "dynstring.h"
typedef struct
{
int (*nextChar) (void*);
int (*isAtEnd) (void*);
void *state;
int thisChar;
} inputReader;
#define BUFFER_LENGTH 8192
typedef struct
{
char inputBuffer[BUFFER_LENGTH];
int bufferUsed;
int bufferPos;
} statePreprocessor;
typedef struct
{
dynstring *ds;
int pos;
} stateDynstring;
#define NEXT_CHAR(ir) ((ir)->thisChar = (ir)->nextChar((ir)->state))
#define THIS_CHAR(ir) ((ir)->thisChar)
#define IS_AT_END(ir) ((ir)->isAtEnd((ir)->state))
inputReader irNewPreprocessor (void);
const char* irPreprocessorFileName (inputReader *ir);
int irPreprocessorLineNumber (inputReader *ir);
inputReader irNewDynstring (dynstring *ds, int pos);
#endif
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